Even while plugged in for charging, the unit continues to operate—ideal if the battery life (which can last over four months) isn’t sufficient. The SA-AR02-128 battery operated Wi-Fi audio recorder is miniature size3.54" × 1.97" × 0.59" audio recorder / monitor device to listen live and download any recordings made.It doesn't rely on SIM card transmission & based on wi-fi connection, so no monthly costs.
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